Receptacle for blasting cartridges



Dec, 2, 1924.

A. KOWASTCH RECEPTACLE FOR BLASTING CARTRIDGES Filed July 19. 1920 Patented Dec.. Z, 1924.

irse STATES PATEN'` FFICE.

RECEPTACLE FOR BLASTING CARTRIDGES.

Application filed Jully 19, 1920.

To all I'zr/mm t may concer/n Be it known that I, AMBnosn KowAsTcH, of Berlin-Charlottenburg, Leibnizstrasse, Germany, 78, have invented a certain new and useful Receptacle for Blasting Cartridges (for which I have filed an application in Germany Aug. 30, 1915), of which the following is a specification.

The present invention relates to a receptacle for blasting cartridges, said receptacle serving to store one or several blasting cartridges intended to be exploded with the help of' liquefied gases.

The manifold and extensive way in which the vliquid air blasting cartridges are applied and employed in practical mining calls for a cartridge that may be easily and comfortably carried and taken along even to a place of the workings or heading in the pit or gallery, which is in a bad condition and difficult to be got at, without the possible drawback that the efficiency of the cartridge may suffer through the transport or a too prolonged storing and without the cartridge 'being too heavy a burden for the workman or the miner carrying the same.

In order to answer to those requirements I provide according to the present invention a receptacle for blasting cartridges said receptacle, as already mentioned above, having a space adapted to store one or several ready made cartridges and having a mouth for the introdiurtion of the cartridges.

The peculiar arrangement of the receptacle or coi'itainer renders it possible to keep and preserve cartridges saturated with liquefied gases, for instance, liquid air, a comparatively long time without deterioration. The receptacle or holder is made in such a way that the cartridge may be kept for hours in it, without the blasting charge being impaired, or having its strength or value diminished. It has even been found out by experience that the absorption will become much better and more intense, if the cartridge is given ample time to absorb the liquefied gases, that have been introduced, but are not very quickly absorbed or taken up by the components of the cartridge.

In the accompanying drawing forming a part of this specification the inventions object is represented by way of an example.

Fig. l is an elevation of the receptacle for Serial No. 397,556.

cartridges, Fig. 2 a vertical section, Fig. 8 a vertical section through the top or obturating contrivance of the receptacle or container.

The upper end of the vacuum-vessel a tapers olf, or is gradually narrowed towards the inside, like the neck of a bottle, so that the entrance or admission of warmer outside air to the cartridge chamber b is avoided as far as possible. The orifice or mouth of the receptacle is closed or obturated by a funnel-shaped contrivance c and it is advantageous to make or to narrow down the width of this opening or mouth of the holder to the diameter or size of a cartridge. The closing or obturating contrivance is provided below with an enlarged longitudinal tube-shaped or pipe-like part (l (Fig. 3). The upper end of the contrivance c is designed to act as stopper or obturator and has an aperture or slit c. This aperture or slit serves as a channel for introducing and containing, the igniting wires or leads. Inorder to be able to take hold of and to comfortably transport the holder along, a strap or similar band is fixed one side of the receptacle c. By these means the receptacle a may be easily carried like a gun or any similar object. To get out a oartridge b, it is drawn or pulled by means of the corresponding connecting wire 7 in the direction h into the enlarged space d of the obturating contrivance 0 and by means of the latter it is directed and pushed into the borehole. Consequently, the closing or obturating contrivance c acts at the same time, when necessity arises, as a protective guard or cover to introducing the cartridge into the borehole. The saturating of the cartridge by means of a liquefied gas, may take place in a special vessel for immersion, or a certain quantity of liquefied gases such as liquid air, which is sufficient for impregnating the cartridges is introduced or injected into the receptacle a.. It is essential that said receptacle or holder ca is constructed as a vacuum vessel, or by some appropriate insulation, it, may be made to maintain a low temperature in its interior.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States is:

The combination of an externally insulated Vessel adapted to store severa-1 cartridges ready for being Saturated with liq uid air, a Vertical funnel branched off from said vessel und adapted for the introduction of Said cartridges, and an obturator engaged in Said funnel7 said obturator being provided at its exterior end with an aperture for passage of igniting Wires of the eartrjdges and beloy with un enlarged Splice adapted to receive a. cartridge.

In testimony whereof I alixed my signalture in presence of two witnesses.

AMBROSE KOVASTCH. Vitnesses:

PETER MEFFERT, FRITZ THRUDMERZ. 

